baber/WOPTO huggingface dataset:
Patent GB-313445-A (GB)
IPC: F22B35/10
Filed: 1929-06-10
Abstract: 313,445. Siemens - Schuckertwerke Akt.-Ges. June 11, 1928, [Convention date]. Feedwater, controlling; pressure, regulating.- In a water-tube boiler 1 with a forced water circulation, particularly in a " limit steam " boiler, the pressure is maintained constant by an overflow valve 20 in the steam delivery pipe, and the feed supply and the fuel and air supplies are automatically regulated in accordance with the load, that is, the quantity of steam delivered. The motors of the fuel conveyer 17, the air blower 18 and the feed pump 6 are regulated at given intervals of time by the water level or steam pressure in an accumulator 11 receiving the exhaust from a high pressure engine 10 driven by the steam from the generator. A constant quantity of steam is supplied from the accumulator through a regulator 13 to a low pressure engine 12. Shunt regulators on the motors of the fuel conveyer and the air fan are, controlled by a temperature measuring device T in the steam pipe and by a CO2 gauge in the furnace.
Patent GB-222421-A (GB)
Title: Ticketting or labelling device
IPC: G09F3/04
Filed: 1924-07-25
Abstract: 222,421. Thompson, F. H. July 25, 1924. Ticket fastenings; tabets. - A pinless ticket for attachment to fabrics has a tongue adapted to press the fabric through an aperture in the body of the ticket and to interlock with the body to secure the ticket on the fabric. A ticket formed as shown in Fig. 6 is folded so that when applied to the edge of the fabric A, as shown in Fig. 4, the tongue 22 presses the fabric through the aperture 21 and interlocks with the edge of the aperture. In a modification shown in Figs. 10 and 12, the fabric is inserted between the body of the ticket 23 and a tongue 26 which is then pressed through to the opposite side of the ticket, and a part 28 is folded over to engage beneath the tongue and lock it in position. A ticket formed as shown in Fig. 15 is first secured in the manner of the ticket shown in Fig. 6, and is then further secured in the manner of the ticket shown in Fig. 12.
Patent GB-181247-A (GB)
Title: Process for the manufacture of c.c.-isopropylallylbarbituric acid
Filed: 1921-06-30
Abstract: C : C-Isopropylallylbarbituric acid is prepared by treating an alkali compound of isopropylbarbituric acid with an allyl halide at ordinary temperatures.
Patent GB-201368-A (GB)
Title: Improvements relating to electro-magnetic remote-control apparatus
IPC: H01H50/66
Filed: 1922-06-28
Abstract: 201,368. Dale., W. B., Hopkinson, R. A., and Hopkinson & Co., Ltd., J. June 28, 1922. Electromagnets.-Electromagnetic remote control apparatus comprises a heavy-current solenoid which is controlled from a distance without a separate relay, and in such a way, that once started, the cycle of operations is automatically completed. The core B of a solenoid A is connected with lost motion at E to a link C and lever D, which actuates the apparatus to be controlled. It is also connected by a pivot pin F with a lever G, which carries a bridging contact J adapted to bridge contacts R, L. The distant switch W is depressed to energize the solenoid A which lifts its core, thereby taking up the lost motion at E and closing the circuit through K. L. The diminished resistance produces added energization of the solenoid A, which lifts its core still further, actuates the lever D, and breaks the circuit at the contacts K, L. The solenoid is thus de-energized and the parts are restored by gravity or a spring.
Patent GB-1491830-A (GB)
Title: Strapping apparatus
IPC: B65B13/18
Filed: 1976-04-30
Abstract: 1491830 Strapping apparatus FMC CORP 30 April 1976 [2 May 1975] 17845/76 Heading B8C A package strapping apparatus comprises a package support 37, means for feeding a strap along a yoke 39 having a fixed portion 41, 43, 45 (47, 49), 53, 57 and a movable portion 51, 55, and means for positioning a flat reinforcing or protecting plate 167 in alignment with the yoke and in position to be strapped. The movable yoke portion has angled rollers adjustably pressed against a shaft 71 so that when the shaft is rotated the portion can move up or down it but can free-wheel on encountering a resistance. The plate 167 is pushed out of the bottom of a magazine 169 and topples down a shoot (197, Fig. 2, not shown) to a ledge (215) where it is laterally held by a retractable plate (209) adjacent the strap welding means. The latter includes a conventional tongue (139) separating the ends of the strap and retractable to be replaced by a heated sealing blade. The retraction of the tongue is arranged to retract the plate (209) so that the sealed strap can hold the plate 167 against the package. The package may comprise a coil and the plate 167, which prevents displacement of the coil windings, may be of cardboard, wood, asbestos, plastics, metal or bonded particle board.
Patent GB-1195581-A (GB)
Title: Electrical Device for Indicating Instantaneous Value of A.C.
Inventor: FORREST ROBERT HENRY
IPC: G01R19/20
Filed: 1967-04-19
Abstract: 1,195,581. Saturable reactor arrangements. MINISTER OF TECHNOLOGY. 18 July, 1968 [19 April, 1967], No. 17895/67. Heading H3B. [Also in Division H2] A saturable reactor arrangement comprises a main winding 4, Fig. 1, carrying alternating current proportional to the current through a load 13, and a secondary winding 6a, 6b inductively decoupled from the main winding and carrying current from an alternating source 9 of higher frequency than that through the main winding, the reactor being dimensioned such that the secondary winding current reduces abruptly each time the main winding current desaturates the core by falling below a predetermined instantaneous value in each half cycle. The reduction of secondary winding current is detected by an indicator, recorder or actuation coil 11 which remains operated until the main winding current next exceeds the predetermined instantaneous value. The arrangement may be used in a cycloconverter system, Fig. 4, in which a polyphase supply is converted to a lower frequency and applied to a load 13 by cyclically gated thyristors or gridcontrolled mercury arc rectifiers in rectifier groups 14, 15. Each path from a rectifier group to the load includes a saturable reactor arrangement 18 as shown in Fig. 1 which overrides a control circuit 16, 17 so as to prevent any rectifier in a group from being switched on until current from the other rectifier group falls below a predetermined instantaneous value. In a modification, Fig. 2 (not shown), the main winding consists of two separate coils. Alternatively a single three-limbed core may be used, Fig. 3 (not shown).
Patent GB-479185-A (GB)
Title: Improvements relating to electrical welding apparatus
IPC: B23K11/11
Filed: 1937-06-28
Abstract: 479,185. Electric welding. DAIMLERBENZ AKT.-GES. June 28, 1937, No. 17936. Convention date, July 6, 1936. [Class 83 (iv)] In an electric spot-welding-apparatus of the kind comprising a fixed electrode bar or bars to which the work is secured and which is connected to one terminal of the supply and an oppositely disposed fixed electrode bar or bars connected to the other terminal and serving also as an abutment for a movable intermediate electrode, corresponding electrode bars of opposite polarity are arranged close together and are separated only by a thin intermediate layer of insulation. A boxshaped hollow bearer a of a vehicle frame and the sheet b to be spot-welded thereto are secured by insulated clamps on the copper bar d, which is separated by insulation f from the copper bar e, both bars being secured to the same iron support c and being connected to the opposite terminals of the transformer g. Welding is effected by tongs h, actuated either by hand or power-storing means, the abutment member k of which is connected to the welding electrode i by a flexible connection m. The upper flange of the support c is cut away at the points at which welding is to be effected.
Patent GB-1246217-A (GB)
Title: Improved process for the manufacture of busurethanes
Inventor: BALLING PETER JOHN
IPC: C07C239/00
Filed: 1969-04-08
Abstract: 1,246,217. Preparation of urethanes. AMERICAN CYANAMID CO. 8 April, 1969 [13 May, 1968], No. 17946/69. Addition to 1,127,988. Heading C2C. Aromatic bisurethanes are prepared by reacting, in the presence of a catalyst consisting essentially of palladium and a Lewis acid, carbon monoxide, organic hydroxyl-containing compounds, and aromatic dinitro compounds in a concentration of not more than 60 weight per cent based upon. the total weight of dinitro compound and hydroxyl compound, said reaction being conducted in two steps, the reaction temperature in the first step being between 130‹ C. and 175‹ C. and the reacting temperature in the second step being between 160‹ C. and 230‹ C., the reaction pressure being at least 1000 p.s.i. in both steps.
Patent GB-586234-A (GB)
Title: Improved folding steps
IPC: E06C1/387
Filed: 1944-09-20
Abstract: 586,234. Step ladders. SIMS, H. W. Sept. 20, 1944, No. 17951. [Class 20 (ii)] In folding steps of the kind in which the treads 2 form link elements of a collapsable parallel 1 i n k assembly consisting of a pair of side rails 1 and a pair of link bars 6, the side rails being pivoted at their upper ends to a pair of rear struts 10, tie bars 12 are pivoted at one end to the inside surfaces of the link bars and at their other end to a transverse member 16 secured across the rear struts in such manner that the tie bars are spaced apart from the rear struts whereby, on collapsing the steps, the side rails, link bars, tie bars and rear struts are able to take up completely overlapping positions. The bar 16 is secured to a cross strut 17. The upper cross strut 18 is placed so that it abuts against an extension of the uppermost tread when the steps are opened, to limit the outward movement of the rear struts. A diagonal tie bar 20 is provided. The treads are formed of sheet metal with flanges 3 and have a cutaway portion 9 to clear the link bars. The side rails, cross struts and rear struts are preferably shallow channel section steel pressings.
Patent GB-749240-A (GB)
Title: A new or improved auxiliary power unit for cycles
IPC: B62M9/00
Filed: 1954-02-01
Abstract: 749,240. Engine-assisted cycles. JONES, G. H. Feb. 1, 1954, No. 18019/55. Divided out of 749,184. Class 79 (3). An auxiliary power unit comprises a housing 17 for a shaft 16 driven by an engine (not shown) at the front end of the housing, the engine and front end of the housing lying in front of the bottom bracket of a pedal cycle wholly between the planes defined by the paths of the two pedal cranks, and the shaft 16 and housing 17 extending rearwardly below the bottom bracket at a small angle to the plane of the cycle frame to a point adjacent the hub of the rear wheel 26, where the shaft 16 drives through bevel gearing 54 a short transverse spindle 53 coupled by a chain or belt to the rear wheel hub. As shown, the spindle 53 carries a sprocket 56 chain-connected to a sprocket 57 and is mounted by bearings 19 in a casing 52 having a socket connection with the shaft housing 17.
Patent GB-269023-A (GB)
Title: Pneumatic cushion
IPC: A47C4/54
Filed: 1926-07-19
Abstract: 269,023. Seefried, (nÚe Von der Tann- Rathsamhausen), Hertha, Freifrau von. July 19, 1926. Cushions.-Two separately inflatable cushions a, b, are connected by a strip of canvas d' and a piece of canvas e is sewn along three sides of the back of one cushion so that when deflated, the ether cushion may be contained in the bag so formed. A strap f and buckle may be provided as shown. When inflated, the cushions may rest one on a chair back and the other on the seat.
Patent GB-438465-A (GB)
Title: Improvements in or relating to seats for omnibuses
IPC: B60N2/24
Filed: 1934-06-19
Abstract: 438,465. Seat frames. NESTA, Ltd., High Road, Tottenham, and JOHNSON, E. E., 3, Palace Gate Mansions, Palace Gate, both in London. June 19, 1934, No. 18063. [Class 52 (ii)] Frames for vehicle seats are built up from frame members having shaped cores of plywood with sheet metal sheathing extending over one face of the core and embracing the core at the edges. The end members A, B include thin flat cores cut from sheet plywood to the shapes shown and sheathed in sheet metal which is turned over the edges of the core as at 15. A part 17 of the edge of the sheathing is not turned over, and an extension 20 of the sheathing is provided to complete the front leg. Wooden cross-bars E, F are bolted to turned-in flanges or sockets formed on, or to brackets welded to the sheathing of the end members. L-section metal bar D is also welded to the sheathing. The upper bar C of the back is formed of a core of plywood with a sheathing of metal, the ends of which are welded to the sheathing of the end frames.
Patent GB-437339-A (GB)
Title: Improvements in or relating to television or like systems
IPC: H04N5/073
Filed: 1935-05-15
Abstract: 437,339. Television. BAIRD, J. L., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. May 15, 1935, No. 18142. Divided out of 431,339. [Class 40 (iii)] An interleaved scanning is produced by deflecting a cathode ray with a regular periodicity image frequency a, and an irregular periodicity line frequency b. If n sets of interleaved lines are required, the period of the last line cycle of each of the first (n-1) sets is increased by 1 of the time of a normal line n cycle, and the period of the last line cycle of the nth set is decreased by n-1/n of the time of a normal line cycle. Specifications 381,898 and 431,339 are referred to.
Patent GB-110985-A (GB)
Title: Rubber Globe for Schools.
Inventor: WALTERS ELIZABETH MARY
IPC: G09B27/08
Filed: 1916-12-19
Abstract: 110,985. Walters, E. M. Dec. 19, 1916. Globes.-Relates to india-rubber balls of the class having outlines of countries and lines of latitude and longitude marked on their surfaces. According to the invention, the balls are made tc exhibit also physical features such as temperature, rain fall, &c., together with political divisions and place names. The maps may be protected by a high-glaze varnish.
Patent GB-743285-A (GB)
Title: Improvements in or relating to the fusion joining of nickel alloys
Inventor: COULSON-SMITH CARL
IPC: B23K35/40
Filed: 1953-06-30
Abstract: A flux composition for use in the gas welding of high nickel heat resistant alloys consists of calcium fluoride in admixture with at least one alkali metal silicate.  The preferred constituent and proportions are calcium fluoride 39-50 per cent by weight and sodium silicate 50-51 per cent by weight.  The flux may be used in the dry powder form or as a paste by the addition of an inert liquid such as water, and in the paste form may be combined with a filler rod either as a coating, a core or both.
Patent GB-151766-A (GB)
Title: Improvements in flower holders
IPC: A45F5/08
Filed: 1919-07-23
Abstract: 151,766. Levy, J. July 23, 1919. Flower-holders.-A buttonhole flower-holder comprises a holder 10 having a flanged mouth 9 to which is hinged at 11 an apertured lid 4 provided with a piece of indiarubber or other flexible waterproofed material 6, secured in position on the underside of the lid by bent-over lugs 5, to close the aperture in the lid. A central cross-slot 7 for the stems of the flowers is formed in the material 6, which retains the flowers and water within the holder 10 when the lid is closed and secured by the resilient snap or catch fastening 8. The holder is retained in the button-hole by means of a a flange or collar 12 formed below the top flange 9. The flange 12 may surround the holder completely, or may be formed as two separate segments pressed out of the sides of the holder.
Patent GB-237276-A (GB)
Title: Improvements in and relating to electron discharge apparatus
IPC: H01J1/02
Filed: 1925-07-17
Abstract: 237,276. British Thomson-Houston Co., Ltd., (Assignees of Charlton, E. E.). July 17, 1924, [Convention date]. Low-pressure metallic-vapour apparatus. - In thermionic devices in which positive ions are produced by contact of atoms of alkali metal such as caesium, rubidium or sodium with'an electrode heated above a critical temperature of about 1000‹ to 1200‹ C. as described in Specifications 208,728 and 231,188 and in which the positive ions neutralize the space charge between the filament and the grid and so increase the sensitiveness of the device as a detector, the control grid is maintained at a negative potential with respect to the electron-emitting cathode so that positive ions also are emitted from part of the cathode, and the cathode comprises thoriated tungsten or other material for which the number of positive ions emitted at the operating temperature above the critical temperature is less than for pure tungsten. The grid may be negative by 2 volts with respect to the negative end of a filament the potential drop along which is 2.5 volts. The number of positive ions required to give a sensitive detector action not critically affected by the filament temperature and plate voltage is produced with a thoriated cathode in caesium or rubidium vapour at ordinary room temperatures, but higher temperatures are necessary with sodium. The reduction in the number of positive ions emitted by replacing a pure tungsten by a thoriated cathode is apparently due to the partial surface covering of thorium which does not emit positive ions. A narrow V-shaped thoriated tungsten filament 2 may be surrounded by a spirally-wound control grid 3 and an anode 5, the bight of the filament being supported by an insulator 10 on the anode-supporting arm 6. In a detecting circuit with input transformer 12 and grid tuning condenser 13, the grid is connected to the negative side of the filament battery 11 and its negative potential is increased in operation by the condenser 15 and grid leak 16. Positive ions are emitted by the positive half of the filament which is close to the negative half emitting electrons only. The alkali metal may be introduced after evacuation of the tube by distillation from' a side-bulb containing the metal or a mixture of a compound thereof with a reducing agent. Specifications 184,446 and 208,694 also are referred to.
Patent GB-119582-A (GB)
Title: Improvements in and relating to Expanded Metal.
Inventor: MILLER ANDREW
IPC: B21D31/04
Filed: 1917-12-13
Abstract: 119,582. Miller, A. Dec. 13, 1917. Expanded metal.-A three-dimensioned lattice structure for use in ferro-concrete work is formed from a bar of metal a, by making a series of vertical slits b and a second series of transverse elite c, and then stretching the bar in two directions so that it forms several flat reticulated walls connected by cross-struts d.
Patent GB-256225-A (GB)
Title: Process for the production of alkyl and aralkyl resorcinols
IPC: C07C37/055
Filed: 1926-07-24
Abstract: 256,225. Hirzel, H., (Assignee of Schilt, W.). July 30, 1925, [Convention date]. Alkyl and aralkyl resorcinols.-Resorcinol derivatives of the form R(CH2)3.C6H3(OH)2' in which the hydroxyl groups are in the 2, 4 positions with reference to the side chain, and in which R may be an aryl or a saturated or unsaturated alkyl or aralkyl radical, are prepared by condensing together in the presence of caustic soda a methyl ketone and an aldehyde, one of which contains a resorcyl group, and reducing the unsaturated ketone so formed. To protect the free hydroxyl groups they are acylated or alkylated, these groups being subsequently split off. In an example 2 : 4-diethoxyacetophenone is condensed with n-butyraldehyde using 10 per cent caustic soda, the diethoxybutylidene-acetophenone formed being filtered off after neutralization. This compound is reduced with hydrogen in acetic acid using a nickel catalyst, or less easily in alcoholic solution. The diethoxycaprophenone is reduced to diethoxyhexylbenzene with zinc amalgam and hydrochloric acid or the diethoxybutylidene acetophenone may be reduced directly by this means. De-ethylation is effected by hydrobromic acid in acetic acid. The hexyl resorcinol is distilled under slightly reduced pressure and is crystallized from benzene and petroleum ether. The hexyl resorcinol thus purified has a m.p. of 65-66‹ C. Instead of n-butyraldehyde, crotonaldehyde may be used. Reduction may also be carried out with sodium and alcohol.
Patent GB-1097815-A (GB)
Title: Improvements in alloys for use in the manufacture of pen points
IPC: C22C5/04
Filed: 1966-04-27
Abstract: An alloy for a penpoint, particularly for the ball of a ball-point pen, has the following percentage composition:- ..Ir.20-45 ..Ru.5-20 ..Os.0-50 .Pd,.Rh and/or Pt.0-25 .Fe,.Ni and/or Co.0-15 Os may be wholly or partly replaced by Re
Patent GB-457398-A (GB)
Title: Multi-range superheterodyne receiver
IPC: H03J5/24
Filed: 1935-06-29
Abstract: 457,398. Wireless receiving-apparatus. COLE, Ltd., E. K., Priory Crescent, Southendon-Sea, and ROWE, H. C., 56, Crowstone Avenue, Westcliff-on-Sea. June 29, 1935, No. 18631. [Class 40 (v)] In a receiver operating on at least two short wave bands a switch is provided to insert in the input of a valve one or other of inductance coils L4 L5, L6 which are shunted by pre-set condenser C1, C2, C3 respectively. The switch by leaving contacts 5, 6 open circuit, disconnects the coil L5 from the condenser C2 when the range is not in use, to prevent the formation of an absorption circuit.
Patent GB-468013-A (GB)
Title: Improvements in tubular heat exchangers for oil refining apparatus
IPC: F28D7/16
Filed: 1936-07-04
Abstract: 468,013. Making heat - exchangers. LEACH, C. H. July 4, 1936, No. 18635. [Class 83 (ii)] [Also in Group XIII] A heat - exchanger or condenser for use more particularly in refining oil includes a baffled casing detachably secured to a ring having vapour inlet and outlet ports 16, 18 and mounted upon a forged base ring 32 having supporting brackets 30 and a tube plate secured in the ring by welded joints 42, 43, and, if desired, dowels 44. A passage 46 is provided for detecting leakage through the joints. The cooling fluid, e.g. crude oil, flows in series through the groups of tubes from one port 74 to another in the cover plate of the ring 32.
Patent GB-182811-A (GB)
Title: Improvements in and relating to means for raising and lowering the cutter bars of lawn mowers
IPC: A01D75/30
Filed: 1921-05-04
Abstract: 182,811. Worthington, C. C. May 13, 1920, [Convention date]. Drawings to Specification. Lawn-mowers.-Comprises the means for supporting and adjusting tEe cutting-apparatus of lawn-mowers described in Specification 163,300, as open to inspection under Sect. 91 (3) (a).
Patent GB-1432808-A (GB)
Title: Solid solutions of iron oxide and bivalent metals
IPC: H01F1/11
Filed: 1973-04-19
Abstract: 1432808 Substituted iron oxide AGENCE NATIONALE DE VALORISTION DE LA RECHERCHE 19 April 1973 [21 April 1972 12 Jan 1973] 18884/73 Headings C1A and C1J A solid solution of γ-Fe 2 O 3  substituted with divalent metal ions is made by preparing a solution of Fe<SP>2+</SP> ions and the divalent metal ions in an oxalate or oxalic acid to p.p.t. a mixed oxalate which is decomposed to oxidative pyrolysis, heating the pyrolysic product in moist hydrogen to produce magnetite substituted with the divalent metal ion(s) and oxidizing the product to convert the remaining Fe<SP>2+</SP> ions into Fe<SP>3+</SP>. The substituted divalent ion may be Fe<SP>2+</SP>, effected by not carrying out the final oxidation to completion, thereby leaving source Fe<SP>2+</SP> remaining, optionally in the presence of additional divalent ions, which may be one or more of CO, Zn, Ni, Mg, Mn, Cd and Cu. The oxalate initially used may be ammonium oxalate.